graham, they accused you of theaterics or political stunt i think senator mccain used. is this a fair debate and how do you respond to that? >> i think it's a good debate. i think they're on the wrong side of history. >> greta: do you mind they called it a stunt? >> i don't admire that kind of add homonym, but they've been arguing you can indefinitely detain a u.s. citizen, i asked senator mccain directly can you send a u.s. citizen to guantanamo bay without a trial forever? and his answer was yes, if i deem them to be a safety risk. problem is that's an accusation, if a government or a politician calls you an enemy combatant, is that enough to whisk you off to guantanamo bay or is that enough to have a drone strike on you? and see, both of these senators argue that america is part of the battlefield for the laws of war apply. well, the laws of war sometimes don't involve due process and i acknowledge that. if soldiers -- if the enemy is shooting at our soldiers, there is no due process involved with that, we shoot back to kill. there are no judges and juries, but ameri